/Engine/Source/Runtime/Engine/Public/PackedLevelActor/PackedLevelActorBuilder.h
Packs InPackedLevelActor using InLevelInstanceToPack as its source level actor
bool PackActor ( [APackedLevelActor](API\Runtime\Engine\PackedLevelActor\APackedLevelActor) * InPackedLevelActor, [ILevelInstanceInterface](API\Runtime\Engine\LevelInstance\ILevelInstanceInterface) * InLevelInstanceToPack )